The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 1999
Filed:
Jul. 18, 1997
Applicant:
Inventors:
Jean-Baptiste Galey, Aulnay-Sous-Bois, FR;
Patrick Pichaud, Velizy, FR;
Assignee:
L'Oreal, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424 62 ; 424 43 ; 424450 ; 424489 ; 424D / ; 514365 ; 514844 ; 514846 ; 514937 ; 514944 ; 514945 ; 548201 ;
Abstract
The invention relates to a novel derivative of kojic acid of formula (I) and to its use, in a composition for topical application as a depigmenting and/or bleaching agent for skin: ##STR1## The invention also relates to a process for depigmenting and/or bleaching skin, which includes applying to the skin a composition that contains 5-hydroxy-4-oxo-4H-pyran-2-ylmethyl 2-oxothiazolidine-4-carboxylate of formula (I) or a pharmaceutically acceptable salt thereof.